I have a page which lists the loppets in this area, but there’s a lot of incomplete information when you click on the links.
Jan 24: The Lake Louise to Banff Loppet has been sold out from the first hour of registration, and everything is in order. If you are a participant who is skiing the first leg, you might want to take advantage of 20% off at Mountaineer Lodge in Lake Louise on the night before.
I have no information whatsoever regarding the Bob Johnstone loppet in Red Deer.
Feb 13: Everything appears to be in order for the Birkebeiner
Feb 21: This link has info on the Grizzly Ski Marathon
Feb 27: Kananaskis Ski Marathon has no info, and I couldn’t find a registration page.
March ? Rocky Mountain Ski Challenge in Canmore. No info.